Fig. 1: Molecular design of conjugated 2D MOFs.

a π-d in-plane integration in the manner of model I and II. b View of the π-d conjugated 2D MOFs by means of [3 + 2] coupling with π-conjugated organic ligand as three-connected node and metal ions in the square planar coordination geometry as two-connected linker. c π-f in-plane integration in the manner of model I and II. d View of the π-f conjugated 2D MOFs by means of [3 + 2] or [3 + 3] coupling with UO22+ ion as three-connected node and π-conjugated organic ligand as two-connected linker or three-connected node.